Chords

If line segment AB is congruent to line segment CD, what must be true?

• Arc AC is congruent to arc BD.

• Arc AB is congruent to arc CD.

• They have the same length as the diameter of the circle.

• They have the same length as the radius of the circle.

Tags

CCSS.HSG.C.A.2

If line segment DE is the perpendicular bisector of line segment AB, what must be true?

• Line segment DE is the radius of the circle.

• Arc EA is congruent to arc EB.

• Line segment CA is congruent to line segment CB.

• All three of the statements are true.

If line segment AB is congruent to line segment CD and point G is the center of the circle, what must be true?

• Line segment GF is congruent to line segment GE.

• Line segment GF is the perpendicular bisector of line segment AB.

• The measure of arc AB is the same as the measure of arc CD.

• All three are true.

What mistake did this person make?

What is the measure of the red arc?

• 180 degrees

• 170 degrees

• 160 degrees

• 90 degrees

What is x?

What must x be?

• 52

• 37

• 45

• 67

Line segment AB is the diameter of the circle.

• True

• False

What is the length of line segment AB?

• 10

• 7

• 8

• 5

Line segment AB has a length of 7x-3, line segment CD has a length of 5x+7, what is the radius of the circle?

• 5

• 32

• 20

• 24

Tags

CCSS.HSG.C.A.2